US706886A - Domestic boiler. - Google Patents

Description

Patented Aug. I2, |902.

J. A. BERNARDI.-

DOMESTIC BOILER. A (Applcaton filed May 2, 1901. Renewed June 26, 1902.)

(No Model.)

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Je//z wf witnesses UNITED JOSEPH A. BERNARDI, OF SALEM, OREGON.

DOMESTIC BOILER.

SPECIFICATION forming part of Letters Patent No. 706,886, dated August 12, 1902. Application iilctl May 2,1901. Renewed Tune 26, 1902. Serial No. 113,3lG. (No model.)

To all whom it may concern: i

Beit known that I, JOSEPH A. BERNARDI, a citizen of the UnitedpStatesLresiding at Salem, in the county of Marion and State of Oregon, have invented certain new and useful lmprovements in Domestic Boilers; and I do declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates `to improvements in boilers for ranges, and particularly to an attachment therefor whereby the sediment and impurities settling in the boiler are prevented from passing to the heating-coil in the waterback and whereby said sediment and impuritics may be drawn off fromV the boiler.

The object of my invention is to provide an attachment of this character having separate passages for the conveyance of the cold Water from the boiler to the water-back and the discharge of the sediment from the boiler, said passages being so constructed and arranged as to be independent of. the water-inlet pipe and adapted to allow only the clear water to pass to the water-back'while permitting of the Withdrawal of all the sedimentand impurities settling in the bottom of the boiler and preventing the same from banking therein.

With this and other objects in view, which will appear as the natureof the improvements is better understood, the invention consists of certain novel features ofconstruction, combination, and arrangement of parts, as will be hereinafter more fully described, and particularly pointed Vout inthe appended claim.

In the accompanyingdrawings, Figure l is a vertical section through a boiler and attachment constructed in accordance with my invention. Fig.2 is an enlarged detail sectional view of the attachmenu'land Fig. 3 is a similar view showing a slight modification.

Referring to the dra'win gs,1 represents what is termed a domestic or range boiler, having connected to its top portion a supplypipe 2, which is vertically arranged within the boiler and has its freevlower end above the bottom thereof, said bottom being provided with a screw-threaded opening 5, for a purpose to be presently explained.

' The numeral 3 indicates the sediment-casn ing, which consists of having cast or formed therewith three projecting or extended openings 5, G, and 7, of .which 5 and 7 are arranged one above the other atthe top and bottom of the sediment-chamber, and the one, G, at one side thereof. The lower opening 7 is provided with exterior and interior screw-threaded portions, by means of which a clear-water tube 4, having exterior screw-threads. 8 at its lower extremity is connected to the interior screw-threads of the opening 7and passes centrally and vertically upward through the chamber 3 and throughthe opening of the projected end 5, with its free end extending somo distance above the same. The sediment-casing, with the connected water-tube 4, is attached to the bottom of the boiler by simply securing the screw-threaded upper end of the projection 5 with the screw-threaded opening 5f in the bottom of the boiler, whereby the free end of the tube 4, after the chamber 3 has been secured to the boiler-bottom, extends above the same at one side of the free end of the supply-pipe 2. Aspace 4a is. formed around the tube 4 by the inner surrounding upper portions of the attached screw-threaded portion 5, and by this means of constructing the surrounding opening 4nu the sediments are permitted to pass therethrough from the boiler to the sediment-casing, where they are drawn off by a waste-pipe connection with the side outlet 6, which is controlled by a cock or faucet therewith for the purpose. A water-back supply-pipe is connected to the exterior screwthreaded end projection 7 of the sedimentcasing 3, which is supplied by a direct flow of water through the free upper end of the clear-water-supply tube 4.

When it is necessary to properly iu'sh an cleanse the sediments from the bottom of the boiler, so that the same will pass through the surrounding space 4fL around the tube 4 and into the sediment-casing and through the outlet-opening 6, the same is accomplished by means of turning off the flow of water from the supply-pipe 2 and opening the faucet connection in the waste-pipe, by means of which the Water contained in the boiler passes through'the Vsaid surrounding space 4a into the casing 3 andout throughthe opening 6. When the boiler has been entirelyrelieved of water, the iiow of water is again turned onto the supply-pipe 2 and passes through.

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the free end of said pipe with suicient force to thoroughly cleanse the bottom of the boiler and casing 3 from all foreign substances. When it is thought that the water has run a sufficient length of time through the free end of the supply-pipe 2 to clean the boiler bottom and casing, the cock or faucet at the outlet 6 is turned to its normal position, thereby permitting of the boiler to be refilled with a fresh supply of Water.

I am aware of the patent to Gibson, numbered 165,724 and dated July 20, 1S75,wherein is shown an attachment consisting of a single casting having two passages, one for the sediment and the other for the clear water, the latter passage being eccentrically arranged within the sediment-passage and connected at its upper end, in which are formed slots to the lower end of the water-induction pipe. In the operation of this device the water from the induction-pipe discharges directly in the clear-water passage and the major portion thereof passes, with the impurities contained therein, to the water-back, while a smaller supply gushesthrou gh lthe slots in the clearwater pipe into the boiler. The objection to this is that no time is afforded to allow the impurities to settle, but they are carried along with the water to the water-back to be deposited in the heating-coil, and at the same time t-he gushing of the water through the slots into the boiler stirs up the impurities in the bottom of the boiler and prevents them from quickly settling. The arrangement of the water-passage :is furthermore objectionable in that owing to its eccentric disposition the sediment on one side only of the waterpipeis allowed to discharge,while that on the other side of the pipe is permitted to bank up and retard the circulation. My construction avoids these objections, as sufficient time elapses between the inlet of the water through the induction-pipe and its outlet through the clear-water tube to allow the impurities to settle, and by arranging said tube concentrically within the chamber 3 the free discharge of sediment from all sides is insured and banking of the sediment prevented.

The construction shown in Fig. 3 differs from that shown in Figs. l and 2 in that the sediment discharges through an outlet 6a in the bottom of the chamber 3, while the clear water discharges through a side outlet 7a. The mode of operation of the modified form of the invention is the same as that previously described. i

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

In a range or domestic boiler, the combination with the boiler havinga supply-pipe arranged vertically therein, with a free and unobstructed lower end, and a screw-threaded central opening` in the bottom of the boiler, of a sediment-chamber having at its side a projecting screw-threaded outlet connection, a screw-threaded projecting upper end, and a projection at its lower end having interiorly and eXteriorly screw-threaded portions, a tube-pipe provided with exteriorly-screwthreaded lower portions connected to the in` teriorly-screw-threaded portion of the lower projection so that said tube will extend centrally and vertically through the sedimentcasing and likewise through and above the upper screwthreaded projection, thegsaid screw-threaded upper end of the upper projection adapted to be connected to the screwthreaded central opening in the bottom of the boiler with the free end ofthe tube eX- tending above said bottom and at one side of the free end of the supply-pipe, awater-back pipe connected to the lower projecting screwthreaded opening, and means connected to the outlet-opening to relieve the sedimentcasing and boiler of their contents, and a space surrounding the upper end of the tube for the passage of the sediments from the boiler into the sediment-casing, substantially as specified.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOSEPH A. BERNARDI.

Witnesses: v

MONTIE LEsLEY, LoUIs ASHLIMAN.

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